Table 2. Important binding residues for all maltose-HBGase II systems.

System	Important binding residues
Maltose/WT	Y84, F187, R221, D223, A224, H227, F314, H353, D354, R419
Maltose/N226P	D81, Y84, H124, V167, F187, R221, A224, H227, E292, F314, H353, R419, R423
Maltose/H227Y	Y84, R221, D223, A224, I225, N226, E292, A293, Y294
Maltose/N226P-H227Y	Y84, H124, F187, R221, H353